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authorbrickbots <rich@brickbots.com>2020-03-14 14:04:34 -0700
committerFlorian Didron <fdidron@users.noreply.github.com>2020-06-12 17:00:27 +0900
commit3d467303ccfe13ede2a5c95f062b08b27ee72971 (patch)
treefb8c22caca23f26f435bab872772f009877bea05 /drivers/oled
parent73cb7c4941c48f9f7054a6e76999b041daa569d1 (diff)
Adding OLED scroll setup functions (#8386)
* Adding scroll setup functions: * Clarifying values stored in oled_scroll_speed
Diffstat (limited to 'drivers/oled')
-rw-r--r--drivers/oled/oled_driver.c36
-rw-r--r--drivers/oled/oled_driver.h12
2 files changed, 44 insertions, 4 deletions
diff --git a/drivers/oled/oled_driver.c b/drivers/oled/oled_driver.c
index 079f5688fe..cb50c38c45 100644
--- a/drivers/oled/oled_driver.c
+++ b/drivers/oled/oled_driver.c
@@ -108,6 +108,9 @@ bool oled_active = false;
bool oled_scrolling = false;
uint8_t oled_rotation = 0;
uint8_t oled_rotation_width = 0;
+uint8_t oled_scroll_speed = 0; // this holds the speed after being remapped to ssd1306 internal values
+uint8_t oled_scroll_start = 0;
+uint8_t oled_scroll_end = 7;
#if OLED_TIMEOUT > 0
uint32_t oled_timeout;
#endif
@@ -515,12 +518,37 @@ bool oled_off(void) {
return !oled_active;
}
+// Set the specific 8 lines rows of the screen to scroll.
+// 0 is the default for start, and 7 for end, which is the entire
+// height of the screen. For 128x32 screens, rows 4-7 are not used.
+void oled_scroll_set_area(uint8_t start_line, uint8_t end_line) {
+ oled_scroll_start = start_line;
+ oled_scroll_end = end_line;
+}
+
+void oled_scroll_set_speed(uint8_t speed) {
+ // Sets the speed for scrolling... does not take effect
+ // until scrolling is either started or restarted
+ // the ssd1306 supports 8 speeds
+ // FrameRate2 speed = 7
+ // FrameRate3 speed = 4
+ // FrameRate4 speed = 5
+ // FrameRate5 speed = 0
+ // FrameRate25 speed = 6
+ // FrameRate64 speed = 1
+ // FrameRate128 speed = 2
+ // FrameRate256 speed = 3
+ // for ease of use these are remaped here to be in order
+ static const uint8_t scroll_remap[8] = {7, 4, 5, 0, 6, 1, 2, 3};
+ oled_scroll_speed = scroll_remap[speed];
+}
+
bool oled_scroll_right(void) {
// Dont enable scrolling if we need to update the display
// This prevents scrolling of bad data from starting the scroll too early after init
if (!oled_dirty && !oled_scrolling) {
- static const uint8_t PROGMEM display_scroll_right[] = {I2C_CMD, SCROLL_RIGHT, 0x00, 0x00, 0x00, 0x0F, 0x00, 0xFF, ACTIVATE_SCROLL};
- if (I2C_TRANSMIT_P(display_scroll_right) != I2C_STATUS_SUCCESS) {
+ uint8_t display_scroll_right[] = {I2C_CMD, SCROLL_RIGHT, 0x00, oled_scroll_start, oled_scroll_speed, oled_scroll_end, 0x00, 0xFF, ACTIVATE_SCROLL};
+ if (I2C_TRANSMIT(display_scroll_right) != I2C_STATUS_SUCCESS) {
print("oled_scroll_right cmd failed\n");
return oled_scrolling;
}
@@ -533,8 +561,8 @@ bool oled_scroll_left(void) {
// Dont enable scrolling if we need to update the display
// This prevents scrolling of bad data from starting the scroll too early after init
if (!oled_dirty && !oled_scrolling) {
- static const uint8_t PROGMEM display_scroll_left[] = {I2C_CMD, SCROLL_LEFT, 0x00, 0x00, 0x00, 0x0F, 0x00, 0xFF, ACTIVATE_SCROLL};
- if (I2C_TRANSMIT_P(display_scroll_left) != I2C_STATUS_SUCCESS) {
+ uint8_t display_scroll_left[] = {I2C_CMD, SCROLL_LEFT, 0x00, oled_scroll_start, oled_scroll_speed, oled_scroll_end, 0x00, 0xFF, ACTIVATE_SCROLL};
+ if (I2C_TRANSMIT(display_scroll_left) != I2C_STATUS_SUCCESS) {
print("oled_scroll_left cmd failed\n");
return oled_scrolling;
}
diff --git a/drivers/oled/oled_driver.h b/drivers/oled/oled_driver.h
index 63e5efb29d..e8dc25d699 100644
--- a/drivers/oled/oled_driver.h
+++ b/drivers/oled/oled_driver.h
@@ -246,6 +246,18 @@ void oled_task(void);
// Called at the start of oled_task, weak function overridable by the user
void oled_task_user(void);
+// Set the specific 8 lines rows of the screen to scroll.
+// 0 is the default for start, and 7 for end, which is the entire
+// height of the screen. For 128x32 screens, rows 4-7 are not used.
+void oled_scroll_set_area(uint8_t start_line, uint8_t end_line);
+
+// Sets scroll speed, 0-7, fastest to slowest. Default is three.
+// Does not take effect until scrolling is either started or restarted
+// the ssd1306 supports 8 speeds with the delay
+// listed below betwen each frame of the scrolling effect
+// 0=2, 1=3, 2=4, 3=5, 4=25, 5=64, 6=128, 7=256
+void oled_scroll_set_speed(uint8_t speed);
+
// Scrolls the entire display right
// Returns true if the screen was scrolling or starts scrolling
// NOTE: display contents cannot be changed while scrolling